If we did that, you know what would have happened.
"Grundy and Cameron have had an unfortunate incident in training, and will be out for 6-8 weeks."
Always need a few extra rucks.
We have about six though including Cox Roughead and Moore. With limited lists, specialist rucks are a luxury.
Cameron and Lynch need to add some other weapons to their artillery otherwise they will just be waiting for injuries to occur.
So just throwing the Lynch to defence thought out there.